Vexlia is a clone of Vexen... somehow, one piece of Marluxia's dna was thrown into the(don't ask) dna Vexen used to make velia... So Vexlia uses a scythe as a weapon, but has power over ice. Vexen spent so much time with Vexlia and so, Marluxia hated him SO much he thrown Vexlia into a crate and shipped him away from Castle Oblivion... some how he ended up in konoha(don't ask) Yes, Rinane (as teenagers people)has a crush on Vexlia...